Answer:
Explanation:
Well use the combines gas law to evaluate this question;
P₁V₁/T₁ = P₂V₂/T₂ (Remember that at sea level the pressure is usually 1 atm)
1 * V₁ / 294.25 = 0.72 * V₂ / 277.95 (NB: Temperatures have to be in Kelvin)
V₁ / 294.25 * 277.95 = 0.72 V₂
0.945 V₁ = 0.72 V₂
0.945/0.72 V₁ = V₂
1.312 V₁ = V₂
The volume (V2) at 3000 m altitude will be <u>1.312 </u>bigger than the initial volume at sea level.
Answer:
0.6139M
Explanation:
A 3.50% by mass of NaCl means there are 3,50g of NaCl in 100g of solution. To find molarity we need to convert the mass of NaCl to moles and mass of solution to liters as follows:
<em>Moles NaCl -molar mass: 58.44g/mol-:</em>
3.50g NaCl * (1mol / 58.44g) = 0.05989 moles of NaCl
<em>Liters solution:</em>
100g solution * (1mL / 1.025g) * (1L / 1000mL) = 0.09756L of solution
<em>Molarity -Ratio of moles and liters-:</em>
0.05989 moles of NaCl / 0.09756L of solution =
<h3>0.6139M</h3>
Answer:
1. electron cloud
2. 47 electrons
3. 8
4. 16
5. electrons enter orbitals of lowest energy first
6. the 2s orbital is at a higher energy level
Hope this helps!
Solid's molecules have very high attraction forces, so the particles stay together and vibrate rather than any strong motion. Liquids have pretty strong attraction forces, but because they are weaker than solids, particles can move more freely, so they can slide against each other rather than vibrate. Gases have the least strong attraction forces compared to the two, so they can move everywhere, and as you know, gas is not constricted and it is everywhere, so gas is the answer.
